./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/McCarthy91_Iteration.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/McCarthy91_Iteration.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7a5d554c80523420ffafe318e54a94b7662019572fad78d6e8fce2ccc83674b0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:11:18,283 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:11:18,346 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-13 15:11:18,351 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:11:18,351 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:11:18,376 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:11:18,376 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:11:18,376 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:11:18,377 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:11:18,377 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:11:18,377 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:11:18,377 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:11:18,377 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:11:18,378 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-13 15:11:18,378 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-13 15:11:18,378 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-13 15:11:18,378 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-13 15:11:18,378 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-13 15:11:18,378 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-13 15:11:18,378 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:11:18,378 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-13 15:11:18,378 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:11:18,379 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:11:18,379 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-13 15:11:18,379 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-13 15:11:18,379 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-13 15:11:18,379 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:11:18,379 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:11:18,379 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:11:18,379 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-13 15:11:18,379 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:11:18,380 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:11:18,380 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:11:18,380 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:11:18,380 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:11:18,380 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-13 15:11:18,380 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a5d554c80523420ffafe318e54a94b7662019572fad78d6e8fce2ccc83674b0 [2024-11-13 15:11:18,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:11:18,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:11:18,711 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:11:18,712 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:11:18,713 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:11:18,714 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/termination-crafted/McCarthy91_Iteration.c Unable to find full path for "g++" [2024-11-13 15:11:20,630 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:11:20,852 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:11:20,852 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/sv-benchmarks/c/termination-crafted/McCarthy91_Iteration.c [2024-11-13 15:11:20,861 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/data/55921197b/d4c84e5cfc9c4301b6b7b231bfa7385b/FLAG408f06900 [2024-11-13 15:11:20,881 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/data/55921197b/d4c84e5cfc9c4301b6b7b231bfa7385b [2024-11-13 15:11:20,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:11:20,885 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:11:20,886 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:11:20,886 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:11:20,890 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:11:20,891 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:11:20" (1/1) ... [2024-11-13 15:11:20,892 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2232f2b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:11:20, skipping insertion in model container [2024-11-13 15:11:20,892 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:11:20" (1/1) ... [2024-11-13 15:11:20,906 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:11:21,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:11:21,083 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:11:21,096 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:11:21,110 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:11:21,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:11:21 WrapperNode [2024-11-13 15:11:21,110 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:11:21,111 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:11:21,112 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:11:21,112 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:11:21,118 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:11:21" (1/1) ... [2024-11-13 15:11:21,122 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:11:21" (1/1) ... [2024-11-13 15:11:21,136 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2024-11-13 15:11:21,136 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:11:21,137 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:11:21,137 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:11:21,137 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:11:21,147 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:11:21" (1/1) ... [2024-11-13 15:11:21,147 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:11:21" (1/1) ... [2024-11-13 15:11:21,147 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:11:21" (1/1) ... [2024-11-13 15:11:21,153 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-13 15:11:21,154 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:11:21" (1/1) ... [2024-11-13 15:11:21,154 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:11:21" (1/1) ... [2024-11-13 15:11:21,156 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:11:21" (1/1) ... [2024-11-13 15:11:21,160 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:11:21" (1/1) ... [2024-11-13 15:11:21,161 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:11:21" (1/1) ... [2024-11-13 15:11:21,161 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:11:21" (1/1) ... [2024-11-13 15:11:21,163 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:11:21,164 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:11:21,164 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:11:21,165 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:11:21,166 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:11:21" (1/1) ... [2024-11-13 15:11:21,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:21,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:21,203 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:21,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-13 15:11:21,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:11:21,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:11:21,329 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:11:21,331 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:11:21,401 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2024-11-13 15:11:21,401 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:11:21,410 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:11:21,410 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 15:11:21,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:11:21 BoogieIcfgContainer [2024-11-13 15:11:21,411 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:11:21,412 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-13 15:11:21,412 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-13 15:11:21,418 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-13 15:11:21,419 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 15:11:21,419 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 03:11:20" (1/3) ... [2024-11-13 15:11:21,420 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b085d93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 03:11:21, skipping insertion in model container [2024-11-13 15:11:21,421 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 15:11:21,421 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:11:21" (2/3) ... [2024-11-13 15:11:21,421 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b085d93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 03:11:21, skipping insertion in model container [2024-11-13 15:11:21,421 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 15:11:21,421 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:11:21" (3/3) ... [2024-11-13 15:11:21,423 INFO L333 chiAutomizerObserver]: Analyzing ICFG McCarthy91_Iteration.c [2024-11-13 15:11:21,483 INFO L299 stractBuchiCegarLoop]: Interprodecural is true [2024-11-13 15:11:21,483 INFO L300 stractBuchiCegarLoop]: Hoare is None [2024-11-13 15:11:21,484 INFO L301 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-13 15:11:21,484 INFO L302 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-13 15:11:21,484 INFO L303 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-13 15:11:21,484 INFO L304 stractBuchiCegarLoop]: Difference is false [2024-11-13 15:11:21,485 INFO L305 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-13 15:11:21,485 INFO L309 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-13 15:11:21,491 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:21,510 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:11:21,510 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:11:21,511 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:11:21,516 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 15:11:21,517 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 15:11:21,517 INFO L331 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-13 15:11:21,517 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:21,519 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:11:21,519 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:11:21,519 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:11:21,520 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 15:11:21,520 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 15:11:21,528 INFO L745 eck$LassoCheckResult]: Stem: 4#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 7#L15-2true [2024-11-13 15:11:21,529 INFO L747 eck$LassoCheckResult]: Loop: 7#L15-2true assume !!(main_~c~0#1 > 0); 5#L15true assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 7#L15-2true [2024-11-13 15:11:21,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:21,539 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-13 15:11:21,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:11:21,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044973704] [2024-11-13 15:11:21,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:11:21,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:11:21,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:21,634 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:11:21,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:21,660 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:11:21,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:21,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2024-11-13 15:11:21,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:11:21,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292174612] [2024-11-13 15:11:21,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:11:21,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:11:21,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:21,683 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:11:21,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:21,692 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:11:21,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:21,695 INFO L85 PathProgramCache]: Analyzing trace with hash 925766, now seen corresponding path program 1 times [2024-11-13 15:11:21,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:11:21,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858285843] [2024-11-13 15:11:21,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:11:21,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:11:21,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:21,712 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:11:21,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:21,723 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:11:21,867 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:11:21,868 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:11:21,869 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:11:21,869 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:11:21,869 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 15:11:21,870 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:21,870 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:11:21,870 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:11:21,870 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration1_Loop [2024-11-13 15:11:21,871 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:11:21,871 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:11:21,890 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:21,908 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:21,916 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:21,931 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:22,051 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:11:22,052 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 15:11:22,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:22,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:22,061 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:22,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-13 15:11:22,063 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:11:22,063 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:11:22,091 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:11:22,091 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:11:22,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2024-11-13 15:11:22,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:22,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:22,115 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:22,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-13 15:11:22,118 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:11:22,118 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:11:22,142 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:11:22,142 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:11:22,154 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-13 15:11:22,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:22,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:22,157 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:22,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-13 15:11:22,160 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:11:22,160 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:11:22,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-11-13 15:11:22,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:22,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:22,190 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:22,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-13 15:11:22,192 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 15:11:22,192 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:11:22,239 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 15:11:22,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-13 15:11:22,244 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:11:22,244 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:11:22,244 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:11:22,244 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:11:22,244 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 15:11:22,244 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:22,244 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:11:22,244 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:11:22,244 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration1_Loop [2024-11-13 15:11:22,244 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:11:22,245 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:11:22,247 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:22,252 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:22,257 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:22,272 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:22,370 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:11:22,374 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 15:11:22,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:22,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:22,378 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:22,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-13 15:11:22,382 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:11:22,398 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:11:22,398 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:11:22,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:11:22,399 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:11:22,407 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:11:22,408 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:11:22,414 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:11:22,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-13 15:11:22,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:22,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:22,436 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:22,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-13 15:11:22,439 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:11:22,455 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:11:22,455 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:11:22,455 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:11:22,455 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:11:22,459 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:11:22,459 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:11:22,465 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:11:22,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-11-13 15:11:22,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:22,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:22,486 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:22,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-13 15:11:22,492 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:11:22,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:11:22,508 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:11:22,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:11:22,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:11:22,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:11:22,510 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:11:22,510 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:11:22,513 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 15:11:22,517 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-13 15:11:22,520 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-13 15:11:22,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:22,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:22,525 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:22,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-13 15:11:22,527 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 15:11:22,527 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 15:11:22,528 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 15:11:22,528 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~c~0#1) = 1*ULTIMATE.start_main_~c~0#1 Supporting invariants [] [2024-11-13 15:11:22,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-11-13 15:11:22,550 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 15:11:22,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:22,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:22,589 INFO L255 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:11:22,590 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:22,603 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:11:22,604 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:22,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:11:22,662 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-13 15:11:22,665 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:22,718 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 17 states and 24 transitions. Complement of second has 6 states. [2024-11-13 15:11:22,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-13 15:11:22,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:22,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2024-11-13 15:11:22,737 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. [2024-11-13 15:11:22,737 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:22,738 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2024-11-13 15:11:22,738 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:22,738 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. [2024-11-13 15:11:22,738 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:22,739 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 24 transitions. [2024-11-13 15:11:22,741 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:11:22,743 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 8 states and 11 transitions. [2024-11-13 15:11:22,744 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-11-13 15:11:22,745 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-11-13 15:11:22,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2024-11-13 15:11:22,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 15:11:22,746 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-11-13 15:11:22,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2024-11-13 15:11:22,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2024-11-13 15:11:22,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:22,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2024-11-13 15:11:22,771 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-11-13 15:11:22,771 INFO L424 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-11-13 15:11:22,771 INFO L331 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-13 15:11:22,771 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2024-11-13 15:11:22,771 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:11:22,771 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:11:22,771 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:11:22,772 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-13 15:11:22,772 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 15:11:22,772 INFO L745 eck$LassoCheckResult]: Stem: 65#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 66#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 67#L15-2 assume !!(main_~c~0#1 > 0); 61#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 62#L15-2 [2024-11-13 15:11:22,772 INFO L747 eck$LassoCheckResult]: Loop: 62#L15-2 assume !!(main_~c~0#1 > 0); 68#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 62#L15-2 [2024-11-13 15:11:22,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:22,773 INFO L85 PathProgramCache]: Analyzing trace with hash 925768, now seen corresponding path program 1 times [2024-11-13 15:11:22,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:11:22,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869300644] [2024-11-13 15:11:22,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:11:22,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:11:22,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:22,779 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:11:22,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:22,784 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:11:22,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:22,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2024-11-13 15:11:22,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:11:22,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752503629] [2024-11-13 15:11:22,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:11:22,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:11:22,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:22,790 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:11:22,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:22,796 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:11:22,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:22,797 INFO L85 PathProgramCache]: Analyzing trace with hash 889663371, now seen corresponding path program 1 times [2024-11-13 15:11:22,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:11:22,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754102258] [2024-11-13 15:11:22,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:11:22,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:11:22,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:22,807 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:11:22,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:22,814 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:11:22,870 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:11:22,870 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:11:22,870 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:11:22,870 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:11:22,870 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 15:11:22,871 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:22,871 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:11:22,871 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:11:22,871 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration2_Loop [2024-11-13 15:11:22,871 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:11:22,871 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:11:22,873 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:22,880 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:22,886 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:22,899 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:22,977 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:11:22,977 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 15:11:22,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:22,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:22,979 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:22,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-13 15:11:22,984 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:11:22,984 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:11:23,005 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:11:23,005 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:11:23,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-13 15:11:23,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:23,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:23,024 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:23,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-13 15:11:23,027 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:11:23,027 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:11:23,048 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:11:23,048 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:11:23,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-13 15:11:23,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:23,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:23,063 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:23,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-13 15:11:23,079 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:11:23,079 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:11:23,097 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-13 15:11:23,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-13 15:11:23,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:23,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:23,123 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:23,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-13 15:11:23,126 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 15:11:23,126 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:11:23,174 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 15:11:23,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-13 15:11:23,178 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:11:23,178 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:11:23,178 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:11:23,179 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:11:23,179 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 15:11:23,179 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:23,179 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:11:23,179 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:11:23,179 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration2_Loop [2024-11-13 15:11:23,179 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:11:23,179 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:11:23,181 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:23,189 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:23,198 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:23,207 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:23,278 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:11:23,279 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 15:11:23,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:23,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:23,281 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:23,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-13 15:11:23,285 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:11:23,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:11:23,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:11:23,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:11:23,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:11:23,304 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:11:23,304 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:11:23,309 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:11:23,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-11-13 15:11:23,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:23,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:23,324 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:23,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-13 15:11:23,326 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:11:23,337 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:11:23,337 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:11:23,338 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:11:23,338 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:11:23,340 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:11:23,341 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:11:23,346 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:11:23,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-13 15:11:23,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:23,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:23,363 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:23,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-13 15:11:23,365 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:11:23,377 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:11:23,377 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:11:23,377 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:11:23,377 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:11:23,377 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:11:23,378 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:11:23,378 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:11:23,385 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 15:11:23,389 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-13 15:11:23,389 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-13 15:11:23,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:23,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:23,391 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:23,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-13 15:11:23,393 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 15:11:23,394 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 15:11:23,394 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 15:11:23,395 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~c~0#1) = 1*ULTIMATE.start_main_~c~0#1 Supporting invariants [] [2024-11-13 15:11:23,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-11-13 15:11:23,409 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 15:11:23,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:23,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:23,441 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:11:23,441 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:23,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:23,461 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:11:23,462 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:23,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:11:23,501 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-13 15:11:23,502 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:23,525 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 17 transitions. Complement of second has 5 states. [2024-11-13 15:11:23,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-13 15:11:23,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:23,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2024-11-13 15:11:23,528 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2024-11-13 15:11:23,528 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:23,528 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2024-11-13 15:11:23,529 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:23,529 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2024-11-13 15:11:23,529 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:23,529 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2024-11-13 15:11:23,533 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:11:23,533 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2024-11-13 15:11:23,533 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-11-13 15:11:23,533 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-11-13 15:11:23,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2024-11-13 15:11:23,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 15:11:23,534 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2024-11-13 15:11:23,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2024-11-13 15:11:23,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-11-13 15:11:23,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:23,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2024-11-13 15:11:23,539 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2024-11-13 15:11:23,539 INFO L424 stractBuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2024-11-13 15:11:23,539 INFO L331 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-13 15:11:23,539 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2024-11-13 15:11:23,540 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:11:23,540 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:11:23,540 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:11:23,540 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1] [2024-11-13 15:11:23,540 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 15:11:23,541 INFO L745 eck$LassoCheckResult]: Stem: 123#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 124#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 125#L15-2 assume !!(main_~c~0#1 > 0); 128#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 127#L15-2 assume !!(main_~c~0#1 > 0); 119#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 120#L15-2 [2024-11-13 15:11:23,541 INFO L747 eck$LassoCheckResult]: Loop: 120#L15-2 assume !!(main_~c~0#1 > 0); 126#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 120#L15-2 [2024-11-13 15:11:23,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:23,541 INFO L85 PathProgramCache]: Analyzing trace with hash 889663373, now seen corresponding path program 2 times [2024-11-13 15:11:23,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:11:23,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898974694] [2024-11-13 15:11:23,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:11:23,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:11:23,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:23,559 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:11:23,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:23,569 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:11:23,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:23,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2024-11-13 15:11:23,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:11:23,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608180454] [2024-11-13 15:11:23,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:11:23,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:11:23,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:23,578 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:11:23,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:23,582 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:11:23,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:23,582 INFO L85 PathProgramCache]: Analyzing trace with hash 268009872, now seen corresponding path program 2 times [2024-11-13 15:11:23,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:11:23,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827858417] [2024-11-13 15:11:23,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:11:23,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:11:23,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:23,604 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:11:23,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:23,617 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:11:23,654 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:11:23,654 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:11:23,655 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:11:23,655 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:11:23,655 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 15:11:23,655 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:23,655 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:11:23,655 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:11:23,655 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration3_Loop [2024-11-13 15:11:23,655 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:11:23,655 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:11:23,656 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:23,661 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:23,665 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:23,673 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:23,738 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:11:23,738 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 15:11:23,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:23,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:23,740 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:23,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-13 15:11:23,744 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:11:23,744 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:11:23,771 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:11:23,771 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:11:23,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-11-13 15:11:23,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:23,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:23,794 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:23,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-13 15:11:23,797 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:11:23,798 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:11:23,824 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:11:23,824 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:11:23,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-11-13 15:11:23,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:23,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:23,846 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:23,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-13 15:11:23,849 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:11:23,849 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:11:23,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-13 15:11:23,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:23,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:23,886 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:23,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-13 15:11:23,889 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 15:11:23,890 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:11:23,933 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 15:11:23,937 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-11-13 15:11:23,938 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:11:23,938 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:11:23,938 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:11:23,938 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:11:23,938 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 15:11:23,938 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:23,938 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:11:23,939 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:11:23,939 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration3_Loop [2024-11-13 15:11:23,939 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:11:23,939 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:11:23,941 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:23,946 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:23,952 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:23,960 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:24,024 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:11:24,024 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 15:11:24,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:24,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:24,027 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:24,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-13 15:11:24,029 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:11:24,043 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:11:24,043 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:11:24,043 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:11:24,044 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:11:24,046 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:11:24,046 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:11:24,051 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:11:24,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-11-13 15:11:24,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:24,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:24,072 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:24,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-13 15:11:24,074 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:11:24,086 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:11:24,086 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:11:24,086 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:11:24,086 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:11:24,088 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:11:24,089 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:11:24,094 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:11:24,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-11-13 15:11:24,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:24,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:24,113 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:24,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-13 15:11:24,117 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:11:24,132 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:11:24,132 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:11:24,132 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:11:24,132 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:11:24,132 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:11:24,134 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:11:24,134 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:11:24,137 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 15:11:24,141 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 15:11:24,143 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-13 15:11:24,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:24,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:24,147 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:24,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-13 15:11:24,149 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 15:11:24,149 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 15:11:24,149 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 15:11:24,149 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1) = 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2024-11-13 15:11:24,161 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-11-13 15:11:24,162 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 15:11:24,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:24,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:24,187 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:11:24,187 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:24,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:24,204 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:11:24,204 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:24,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:11:24,208 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-13 15:11:24,208 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:24,218 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 21 transitions. Complement of second has 5 states. [2024-11-13 15:11:24,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-13 15:11:24,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:24,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2024-11-13 15:11:24,220 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2024-11-13 15:11:24,220 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:24,220 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 15:11:24,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:24,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:24,254 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:11:24,254 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:24,277 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:11:24,277 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:24,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:11:24,281 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-13 15:11:24,281 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:24,294 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 21 transitions. Complement of second has 5 states. [2024-11-13 15:11:24,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-13 15:11:24,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:24,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2024-11-13 15:11:24,297 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2024-11-13 15:11:24,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:24,297 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 15:11:24,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:24,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:24,324 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:11:24,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:24,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:24,345 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:11:24,346 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:24,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:11:24,350 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-13 15:11:24,350 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:24,362 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 24 transitions. Complement of second has 4 states. [2024-11-13 15:11:24,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-13 15:11:24,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:24,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2024-11-13 15:11:24,366 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2024-11-13 15:11:24,366 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:24,366 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2024-11-13 15:11:24,367 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:24,367 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 4 letters. [2024-11-13 15:11:24,367 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:24,367 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 24 transitions. [2024-11-13 15:11:24,368 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-13 15:11:24,368 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 14 states and 20 transitions. [2024-11-13 15:11:24,368 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-11-13 15:11:24,368 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-11-13 15:11:24,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 20 transitions. [2024-11-13 15:11:24,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 15:11:24,371 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 20 transitions. [2024-11-13 15:11:24,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 20 transitions. [2024-11-13 15:11:24,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 6. [2024-11-13 15:11:24,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:24,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2024-11-13 15:11:24,372 INFO L240 hiAutomatonCegarLoop]: Abstraction has 6 states and 8 transitions. [2024-11-13 15:11:24,372 INFO L424 stractBuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2024-11-13 15:11:24,372 INFO L331 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-13 15:11:24,372 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2024-11-13 15:11:24,372 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-13 15:11:24,373 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:11:24,373 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:11:24,373 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 15:11:24,373 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 15:11:24,373 INFO L745 eck$LassoCheckResult]: Stem: 277#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 278#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 274#L15-2 [2024-11-13 15:11:24,373 INFO L747 eck$LassoCheckResult]: Loop: 274#L15-2 assume !!(main_~c~0#1 > 0); 273#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 274#L15-2 [2024-11-13 15:11:24,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:24,373 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2024-11-13 15:11:24,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:11:24,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286437091] [2024-11-13 15:11:24,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:11:24,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:11:24,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:24,381 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:11:24,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:24,383 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:11:24,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:24,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1286, now seen corresponding path program 1 times [2024-11-13 15:11:24,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:11:24,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646212900] [2024-11-13 15:11:24,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:11:24,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:11:24,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:24,394 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:11:24,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:24,399 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:11:24,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:24,400 INFO L85 PathProgramCache]: Analyzing trace with hash 925768, now seen corresponding path program 3 times [2024-11-13 15:11:24,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:11:24,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119609996] [2024-11-13 15:11:24,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:11:24,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:11:24,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:24,410 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:11:24,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:24,414 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:11:24,454 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:11:24,454 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:11:24,454 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:11:24,454 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:11:24,454 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 15:11:24,454 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:24,454 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:11:24,454 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:11:24,455 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration4_Loop [2024-11-13 15:11:24,455 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:11:24,455 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:11:24,456 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:24,464 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:24,471 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:24,475 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:24,529 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:11:24,530 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 15:11:24,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:24,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:24,532 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:24,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-13 15:11:24,536 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:11:24,536 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:11:24,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-11-13 15:11:24,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:24,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:24,577 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:24,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-13 15:11:24,580 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 15:11:24,580 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:11:24,612 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:11:24,612 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=1} Honda state: {ULTIMATE.start_main_~c~0#1=1} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=0}, {ULTIMATE.start_main_~c~0#1=1}, {ULTIMATE.start_main_~c~0#1=0}] Lambdas: [0, 1, 5] Nus: [0, 0] [2024-11-13 15:11:24,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-11-13 15:11:24,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:24,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:24,633 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:24,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-13 15:11:24,637 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:11:24,637 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:11:24,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-11-13 15:11:24,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:24,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:24,670 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:24,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-13 15:11:24,672 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 15:11:24,672 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:11:24,705 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 15:11:24,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-11-13 15:11:24,708 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:11:24,708 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:11:24,708 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:11:24,708 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:11:24,708 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 15:11:24,708 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:24,708 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:11:24,708 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:11:24,708 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration4_Loop [2024-11-13 15:11:24,708 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:11:24,708 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:11:24,710 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:24,717 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:24,724 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:24,728 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:24,783 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:11:24,784 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 15:11:24,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:24,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:24,786 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:24,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-13 15:11:24,794 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:11:24,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:11:24,810 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:11:24,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:11:24,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:11:24,811 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:11:24,812 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:11:24,812 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:11:24,817 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:11:24,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2024-11-13 15:11:24,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:24,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:24,840 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:24,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-13 15:11:24,843 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:11:24,859 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:11:24,859 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:11:24,859 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:11:24,859 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:11:24,859 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:11:24,860 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:11:24,860 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:11:24,863 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 15:11:24,866 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 15:11:24,866 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-13 15:11:24,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:24,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:24,871 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:24,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-13 15:11:24,874 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 15:11:24,874 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 15:11:24,874 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 15:11:24,874 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1) = -2*ULTIMATE.start_main_~n~0#1 + 211 Supporting invariants [] [2024-11-13 15:11:24,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2024-11-13 15:11:24,898 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 15:11:24,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:24,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:24,929 INFO L255 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:11:24,929 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:24,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:24,943 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:11:24,943 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:24,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:11:24,948 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-13 15:11:24,948 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:24,960 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 18 transitions. Complement of second has 5 states. [2024-11-13 15:11:24,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-13 15:11:24,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:24,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2024-11-13 15:11:24,961 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 2 letters. Loop has 2 letters. [2024-11-13 15:11:24,962 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:24,962 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 4 letters. Loop has 2 letters. [2024-11-13 15:11:24,962 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:24,962 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 2 letters. Loop has 4 letters. [2024-11-13 15:11:24,962 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:24,962 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 18 transitions. [2024-11-13 15:11:24,963 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-13 15:11:24,963 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 10 states and 14 transitions. [2024-11-13 15:11:24,963 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-11-13 15:11:24,963 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2024-11-13 15:11:24,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 14 transitions. [2024-11-13 15:11:24,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 15:11:24,964 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 14 transitions. [2024-11-13 15:11:24,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 14 transitions. [2024-11-13 15:11:24,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-13 15:11:24,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:24,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 13 transitions. [2024-11-13 15:11:24,965 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 13 transitions. [2024-11-13 15:11:24,965 INFO L424 stractBuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2024-11-13 15:11:24,965 INFO L331 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-13 15:11:24,966 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 13 transitions. [2024-11-13 15:11:24,966 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-13 15:11:24,966 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:11:24,966 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:11:24,968 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2024-11-13 15:11:24,968 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 15:11:24,969 INFO L745 eck$LassoCheckResult]: Stem: 326#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 327#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 328#L15-2 assume !!(main_~c~0#1 > 0); 329#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 330#L15-2 assume !!(main_~c~0#1 > 0); 322#L15 [2024-11-13 15:11:24,969 INFO L747 eck$LassoCheckResult]: Loop: 322#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 323#L15-2 assume !!(main_~c~0#1 > 0); 322#L15 [2024-11-13 15:11:24,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:24,969 INFO L85 PathProgramCache]: Analyzing trace with hash 28698756, now seen corresponding path program 2 times [2024-11-13 15:11:24,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:11:24,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247278069] [2024-11-13 15:11:24,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:11:24,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:11:24,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:25,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:11:25,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:11:25,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247278069] [2024-11-13 15:11:25,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247278069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:11:25,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:11:25,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:11:25,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965720733] [2024-11-13 15:11:25,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:11:25,076 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-13 15:11:25,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:25,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 2 times [2024-11-13 15:11:25,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:11:25,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355053808] [2024-11-13 15:11:25,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:11:25,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:11:25,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:25,084 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:11:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:25,087 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:11:25,126 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:11:25,126 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:11:25,126 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:11:25,126 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:11:25,126 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 15:11:25,126 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:25,126 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:11:25,126 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:11:25,126 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration5_Loop [2024-11-13 15:11:25,126 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:11:25,126 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:11:25,127 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:25,134 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:25,137 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:25,140 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:25,194 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:11:25,194 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 15:11:25,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:25,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:25,196 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:25,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-13 15:11:25,198 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:11:25,198 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:11:25,221 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2024-11-13 15:11:25,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:25,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:25,223 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:25,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-11-13 15:11:25,225 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 15:11:25,225 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:11:25,266 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 15:11:25,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2024-11-13 15:11:25,271 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:11:25,271 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:11:25,271 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:11:25,271 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:11:25,271 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 15:11:25,271 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:25,271 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:11:25,271 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:11:25,271 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration5_Loop [2024-11-13 15:11:25,271 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:11:25,271 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:11:25,274 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:25,283 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:25,289 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:25,295 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:25,347 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:11:25,347 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 15:11:25,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:25,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:25,350 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:25,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-11-13 15:11:25,352 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:11:25,367 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:11:25,368 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:11:25,368 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:11:25,368 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:11:25,370 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:11:25,370 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:11:25,403 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:11:25,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-13 15:11:25,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2024-11-13 15:11:25,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:25,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:25,450 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:25,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-11-13 15:11:25,455 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:11:25,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-11-13 15:11:25,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:11:25,470 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:11:25,470 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:11:25,470 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:11:25,470 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:11:25,471 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:11:25,472 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:11:25,477 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 15:11:25,480 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 15:11:25,480 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-13 15:11:25,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:25,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:25,482 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:25,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-11-13 15:11:25,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-11-13 15:11:25,489 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 15:11:25,490 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 15:11:25,490 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 15:11:25,490 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1) = -2*ULTIMATE.start_main_~n~0#1 + 211 Supporting invariants [] [2024-11-13 15:11:25,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2024-11-13 15:11:25,509 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 15:11:25,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:25,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:25,536 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:11:25,536 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:25,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:25,554 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:11:25,554 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:25,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:11:25,603 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-13 15:11:25,603 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:25,615 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 18 transitions. Complement of second has 5 states. [2024-11-13 15:11:25,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-13 15:11:25,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:25,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2024-11-13 15:11:25,621 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2024-11-13 15:11:25,621 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:25,621 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 15:11:25,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:25,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:25,645 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:11:25,646 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:25,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:25,660 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:11:25,660 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:25,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:11:25,682 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-13 15:11:25,682 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:25,700 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 15 transitions. Complement of second has 5 states. [2024-11-13 15:11:25,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-13 15:11:25,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:25,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2024-11-13 15:11:25,701 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2024-11-13 15:11:25,701 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:25,702 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 15:11:25,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:25,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:25,728 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:11:25,728 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:25,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:25,741 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:11:25,741 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:25,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:11:25,761 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-13 15:11:25,762 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:25,773 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 17 states and 21 transitions. Complement of second has 4 states. [2024-11-13 15:11:25,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-13 15:11:25,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:25,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2024-11-13 15:11:25,774 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2024-11-13 15:11:25,775 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:25,775 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2024-11-13 15:11:25,775 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:25,775 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 4 letters. [2024-11-13 15:11:25,776 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:25,776 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 21 transitions. [2024-11-13 15:11:25,777 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-13 15:11:25,777 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 13 states and 17 transitions. [2024-11-13 15:11:25,777 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2024-11-13 15:11:25,777 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2024-11-13 15:11:25,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2024-11-13 15:11:25,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 15:11:25,778 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 17 transitions. [2024-11-13 15:11:25,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2024-11-13 15:11:25,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 8. [2024-11-13 15:11:25,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:25,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2024-11-13 15:11:25,779 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-11-13 15:11:25,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:11:25,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:11:25,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:11:25,782 INFO L87 Difference]: Start difference. First operand 8 states and 11 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:25,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:11:25,802 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2024-11-13 15:11:25,802 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2024-11-13 15:11:25,803 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-13 15:11:25,803 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 9 states and 11 transitions. [2024-11-13 15:11:25,803 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2024-11-13 15:11:25,803 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2024-11-13 15:11:25,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 11 transitions. [2024-11-13 15:11:25,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 15:11:25,804 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 11 transitions. [2024-11-13 15:11:25,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 11 transitions. [2024-11-13 15:11:25,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2024-11-13 15:11:25,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:25,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2024-11-13 15:11:25,805 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2024-11-13 15:11:25,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:11:25,806 INFO L424 stractBuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2024-11-13 15:11:25,806 INFO L331 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-13 15:11:25,806 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2024-11-13 15:11:25,807 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-13 15:11:25,807 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:11:25,807 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:11:25,807 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 1, 1, 1, 1] [2024-11-13 15:11:25,807 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2024-11-13 15:11:25,808 INFO L745 eck$LassoCheckResult]: Stem: 487#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 488#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 489#L15-2 assume !!(main_~c~0#1 > 0); 486#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 485#L15-2 assume !!(main_~c~0#1 > 0); 490#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 491#L15-2 assume !!(main_~c~0#1 > 0); 484#L15 [2024-11-13 15:11:25,808 INFO L747 eck$LassoCheckResult]: Loop: 484#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 485#L15-2 assume !!(main_~c~0#1 > 0); 490#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 491#L15-2 assume !!(main_~c~0#1 > 0); 484#L15 [2024-11-13 15:11:25,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:25,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1809760735, now seen corresponding path program 3 times [2024-11-13 15:11:25,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:11:25,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915816897] [2024-11-13 15:11:25,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:11:25,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:11:25,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:25,815 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:11:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:25,819 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:11:25,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:25,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1380409, now seen corresponding path program 1 times [2024-11-13 15:11:25,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:11:25,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288220198] [2024-11-13 15:11:25,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:11:25,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:11:25,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:25,826 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:11:25,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:25,830 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:11:25,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:25,831 INFO L85 PathProgramCache]: Analyzing trace with hash -119295209, now seen corresponding path program 4 times [2024-11-13 15:11:25,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:11:25,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204828767] [2024-11-13 15:11:25,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:11:25,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:11:25,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:25,839 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:11:25,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:25,846 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:11:25,921 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:11:25,921 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:11:25,921 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:11:25,921 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:11:25,922 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 15:11:25,922 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:25,922 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:11:25,922 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:11:25,922 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration6_Loop [2024-11-13 15:11:25,922 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:11:25,922 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:11:25,923 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:25,927 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:25,931 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:25,941 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:26,009 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:11:26,009 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 15:11:26,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:26,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:26,016 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:26,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-11-13 15:11:26,019 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:11:26,019 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:11:26,046 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:11:26,046 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:11:26,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2024-11-13 15:11:26,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:26,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:26,068 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:26,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-11-13 15:11:26,073 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:11:26,073 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:11:26,101 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:11:26,101 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:11:26,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-11-13 15:11:26,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:26,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:26,126 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:26,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-11-13 15:11:26,129 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:11:26,129 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:11:26,157 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:11:26,157 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=1} Honda state: {ULTIMATE.start_main_~c~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:11:26,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2024-11-13 15:11:26,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:26,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:26,177 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:26,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-11-13 15:11:26,180 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:11:26,180 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:11:26,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2024-11-13 15:11:26,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:26,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:26,219 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:26,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-11-13 15:11:26,221 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 15:11:26,222 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:11:26,243 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 15:11:26,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2024-11-13 15:11:26,262 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:11:26,263 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:11:26,263 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:11:26,263 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:11:26,263 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 15:11:26,263 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:26,263 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:11:26,263 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:11:26,263 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration6_Loop [2024-11-13 15:11:26,263 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:11:26,263 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:11:26,264 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:26,270 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:26,273 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:26,284 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:26,338 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:11:26,338 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 15:11:26,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:26,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:26,340 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:26,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-11-13 15:11:26,344 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:11:26,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:11:26,359 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:11:26,359 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:11:26,359 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:11:26,359 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:11:26,361 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:11:26,362 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:11:26,365 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:11:26,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2024-11-13 15:11:26,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:26,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:26,387 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:26,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-11-13 15:11:26,393 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:11:26,409 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:11:26,409 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:11:26,409 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:11:26,409 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:11:26,411 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:11:26,411 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:11:26,416 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:11:26,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2024-11-13 15:11:26,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:26,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:26,440 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:26,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-11-13 15:11:26,443 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:11:26,455 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:11:26,456 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:11:26,456 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:11:26,456 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:11:26,456 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:11:26,457 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:11:26,457 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:11:26,460 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 15:11:26,464 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 15:11:26,464 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-13 15:11:26,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:26,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:26,467 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:26,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-11-13 15:11:26,468 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 15:11:26,468 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 15:11:26,468 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 15:11:26,468 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1) = -2*ULTIMATE.start_main_~n~0#1 + 201 Supporting invariants [] [2024-11-13 15:11:26,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2024-11-13 15:11:26,483 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 15:11:26,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:26,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:26,503 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:11:26,503 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:26,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:26,527 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:11:26,527 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:26,581 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:11:26,581 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-13 15:11:26,582 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:26,594 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 3. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 17 transitions. Complement of second has 5 states. [2024-11-13 15:11:26,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-13 15:11:26,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:26,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2024-11-13 15:11:26,595 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 4 letters. [2024-11-13 15:11:26,595 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:26,595 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 15:11:26,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:26,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:26,619 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:11:26,619 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:26,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:26,641 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:11:26,642 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:26,700 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:11:26,700 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-13 15:11:26,701 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:26,723 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 3. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 15 transitions. Complement of second has 5 states. [2024-11-13 15:11:26,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-13 15:11:26,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:26,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2024-11-13 15:11:26,727 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 7 letters. Loop has 4 letters. [2024-11-13 15:11:26,727 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:26,727 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 15:11:26,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:26,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:26,753 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:11:26,753 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:26,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:26,772 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:11:26,772 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:26,821 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:11:26,822 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-13 15:11:26,822 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:26,831 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 3. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 17 states and 20 transitions. Complement of second has 4 states. [2024-11-13 15:11:26,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-13 15:11:26,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:26,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2024-11-13 15:11:26,832 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 4 letters. [2024-11-13 15:11:26,833 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:26,833 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 15:11:26,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:26,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:26,855 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:11:26,856 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:26,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:26,870 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:11:26,870 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:26,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:11:26,916 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-13 15:11:26,916 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:26,939 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 3. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 19 transitions. Complement of second has 4 states. [2024-11-13 15:11:26,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-13 15:11:26,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:26,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2024-11-13 15:11:26,941 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 4 letters. [2024-11-13 15:11:26,942 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:26,942 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 15:11:26,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:26,964 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:11:26,965 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:26,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:26,979 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:11:26,979 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:27,027 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:11:27,028 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-13 15:11:27,029 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 8 states and 10 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:27,107 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 8 states and 10 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 82 states and 109 transitions. Complement of second has 37 states 8 powerset states29 rank states. The highest rank that occured is 5 [2024-11-13 15:11:27,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-13 15:11:27,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:27,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2024-11-13 15:11:27,111 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 7 letters. Loop has 4 letters. [2024-11-13 15:11:27,112 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:27,112 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 11 letters. Loop has 4 letters. [2024-11-13 15:11:27,112 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:27,112 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 7 letters. Loop has 8 letters. [2024-11-13 15:11:27,113 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:27,113 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 82 states and 109 transitions. [2024-11-13 15:11:27,119 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-13 15:11:27,120 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 82 states to 37 states and 51 transitions. [2024-11-13 15:11:27,120 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2024-11-13 15:11:27,120 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2024-11-13 15:11:27,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 51 transitions. [2024-11-13 15:11:27,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 15:11:27,121 INFO L218 hiAutomatonCegarLoop]: Abstraction has 37 states and 51 transitions. [2024-11-13 15:11:27,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 51 transitions. [2024-11-13 15:11:27,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 20. [2024-11-13 15:11:27,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.45) internal successors, (29), 19 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:27,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 29 transitions. [2024-11-13 15:11:27,127 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 29 transitions. [2024-11-13 15:11:27,127 INFO L424 stractBuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2024-11-13 15:11:27,127 INFO L331 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-13 15:11:27,127 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 29 transitions. [2024-11-13 15:11:27,128 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-13 15:11:27,128 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:11:27,128 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:11:27,128 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 1, 1, 1, 1] [2024-11-13 15:11:27,128 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [3, 2, 1] [2024-11-13 15:11:27,128 INFO L745 eck$LassoCheckResult]: Stem: 876#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 878#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 888#L15-2 assume !!(main_~c~0#1 > 0); 886#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 887#L15-2 assume !!(main_~c~0#1 > 0); 883#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 882#L15-2 assume !!(main_~c~0#1 > 0); 873#L15 [2024-11-13 15:11:27,128 INFO L747 eck$LassoCheckResult]: Loop: 873#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 874#L15-2 assume !!(main_~c~0#1 > 0); 885#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 884#L15-2 assume !!(main_~c~0#1 > 0); 883#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 882#L15-2 assume !!(main_~c~0#1 > 0); 873#L15 [2024-11-13 15:11:27,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:27,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1809760735, now seen corresponding path program 5 times [2024-11-13 15:11:27,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:11:27,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996281913] [2024-11-13 15:11:27,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:11:27,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:11:27,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:27,142 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:11:27,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:27,150 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:11:27,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:27,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1326573462, now seen corresponding path program 2 times [2024-11-13 15:11:27,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:11:27,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185385809] [2024-11-13 15:11:27,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:11:27,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:11:27,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:27,160 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:11:27,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:27,166 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:11:27,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:27,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1321421556, now seen corresponding path program 6 times [2024-11-13 15:11:27,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:11:27,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239897724] [2024-11-13 15:11:27,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:11:27,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:11:27,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:27,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2024-11-13 15:11:27,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2024-11-13 15:11:27,314 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 15:11:27,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:11:27,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239897724] [2024-11-13 15:11:27,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239897724] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:11:27,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1050492497] [2024-11-13 15:11:27,314 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-13 15:11:27,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:11:27,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:27,316 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:11:27,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-11-13 15:11:27,350 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2024-11-13 15:11:27,350 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:11:27,351 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 15:11:27,352 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:27,384 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 15:11:27,385 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:11:27,439 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 15:11:27,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1050492497] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:11:27,440 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:11:27,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-11-13 15:11:27,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355551862] [2024-11-13 15:11:27,440 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:11:27,510 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:11:27,510 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:11:27,511 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:11:27,511 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:11:27,511 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 15:11:27,511 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:27,511 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:11:27,511 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:11:27,511 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration7_Loop [2024-11-13 15:11:27,511 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:11:27,511 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:11:27,512 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:27,517 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:27,525 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:27,528 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:27,587 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:11:27,587 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 15:11:27,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:27,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:27,589 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:27,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-11-13 15:11:27,593 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:11:27,593 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:11:27,619 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:11:27,619 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_13=1} Honda state: {v_rep~unnamed0~0~true_13=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:11:27,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2024-11-13 15:11:27,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:27,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:27,640 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:27,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2024-11-13 15:11:27,643 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:11:27,643 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:11:27,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2024-11-13 15:11:27,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:27,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:27,674 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:27,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2024-11-13 15:11:27,676 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 15:11:27,676 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:11:27,746 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 15:11:27,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2024-11-13 15:11:27,751 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:11:27,751 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:11:27,751 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:11:27,751 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:11:27,751 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 15:11:27,751 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:27,751 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:11:27,751 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:11:27,751 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration7_Loop [2024-11-13 15:11:27,751 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:11:27,751 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:11:27,752 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:27,756 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:27,766 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:27,768 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:27,826 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:11:27,827 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 15:11:27,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:27,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:27,830 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:27,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2024-11-13 15:11:27,832 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:11:27,848 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:11:27,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:11:27,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:11:27,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:11:27,850 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:11:27,850 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:11:27,854 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:11:27,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2024-11-13 15:11:27,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:27,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:27,875 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:27,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2024-11-13 15:11:27,878 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:11:27,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:11:27,893 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:11:27,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:11:27,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:11:27,893 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:11:27,895 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:11:27,895 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:11:27,897 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 15:11:27,902 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 15:11:27,903 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-13 15:11:27,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:27,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:27,905 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:27,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2024-11-13 15:11:27,908 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 15:11:27,908 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 15:11:27,908 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 15:11:27,908 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1) = 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2024-11-13 15:11:27,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2024-11-13 15:11:27,928 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 15:11:27,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:27,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:27,950 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:11:27,951 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:27,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:27,966 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 15:11:27,967 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:28,007 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:11:28,008 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2024-11-13 15:11:28,008 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 29 transitions. cyclomatic complexity: 12 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:28,048 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 29 transitions. cyclomatic complexity: 12. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 81 states and 108 transitions. Complement of second has 9 states. [2024-11-13 15:11:28,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-13 15:11:28,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:28,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2024-11-13 15:11:28,050 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 7 letters. Loop has 6 letters. [2024-11-13 15:11:28,050 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:28,050 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 15:11:28,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:28,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:28,077 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:11:28,078 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:28,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:28,100 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 15:11:28,100 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:28,146 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:11:28,147 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2024-11-13 15:11:28,147 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 29 transitions. cyclomatic complexity: 12 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:28,188 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 29 transitions. cyclomatic complexity: 12. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 77 states and 105 transitions. Complement of second has 9 states. [2024-11-13 15:11:28,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-13 15:11:28,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:28,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. [2024-11-13 15:11:28,189 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 7 letters. Loop has 6 letters. [2024-11-13 15:11:28,190 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:28,190 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 15:11:28,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:28,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:28,209 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:11:28,209 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:28,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:28,225 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 15:11:28,226 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:28,268 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:11:28,269 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2024-11-13 15:11:28,269 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 29 transitions. cyclomatic complexity: 12 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:28,310 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 29 transitions. cyclomatic complexity: 12. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 72 states and 99 transitions. Complement of second has 13 states. [2024-11-13 15:11:28,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-13 15:11:28,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:28,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2024-11-13 15:11:28,312 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 7 letters. Loop has 6 letters. [2024-11-13 15:11:28,313 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:28,313 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 13 letters. Loop has 6 letters. [2024-11-13 15:11:28,313 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:28,313 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 7 letters. Loop has 12 letters. [2024-11-13 15:11:28,313 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:28,313 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 99 transitions. [2024-11-13 15:11:28,315 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 22 [2024-11-13 15:11:28,318 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 57 states and 81 transitions. [2024-11-13 15:11:28,318 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-11-13 15:11:28,318 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2024-11-13 15:11:28,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 81 transitions. [2024-11-13 15:11:28,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 15:11:28,318 INFO L218 hiAutomatonCegarLoop]: Abstraction has 57 states and 81 transitions. [2024-11-13 15:11:28,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states and 81 transitions. [2024-11-13 15:11:28,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 41. [2024-11-13 15:11:28,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 41 states have (on average 1.4878048780487805) internal successors, (61), 40 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:28,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 61 transitions. [2024-11-13 15:11:28,322 INFO L240 hiAutomatonCegarLoop]: Abstraction has 41 states and 61 transitions. [2024-11-13 15:11:28,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:11:28,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:11:28,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:11:28,323 INFO L87 Difference]: Start difference. First operand 41 states and 61 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:28,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:11:28,339 INFO L93 Difference]: Finished difference Result 78 states and 107 transitions. [2024-11-13 15:11:28,340 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 107 transitions. [2024-11-13 15:11:28,341 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 19 [2024-11-13 15:11:28,342 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 59 states and 85 transitions. [2024-11-13 15:11:28,342 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-11-13 15:11:28,342 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-11-13 15:11:28,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 85 transitions. [2024-11-13 15:11:28,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 15:11:28,342 INFO L218 hiAutomatonCegarLoop]: Abstraction has 59 states and 85 transitions. [2024-11-13 15:11:28,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states and 85 transitions. [2024-11-13 15:11:28,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 52. [2024-11-13 15:11:28,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 52 states have (on average 1.4423076923076923) internal successors, (75), 51 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:28,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 75 transitions. [2024-11-13 15:11:28,346 INFO L240 hiAutomatonCegarLoop]: Abstraction has 52 states and 75 transitions. [2024-11-13 15:11:28,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:11:28,349 INFO L424 stractBuchiCegarLoop]: Abstraction has 52 states and 75 transitions. [2024-11-13 15:11:28,349 INFO L331 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-11-13 15:11:28,350 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 75 transitions. [2024-11-13 15:11:28,350 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 19 [2024-11-13 15:11:28,351 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:11:28,351 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:11:28,351 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 2, 1, 1, 1] [2024-11-13 15:11:28,351 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [7, 4, 3] [2024-11-13 15:11:28,351 INFO L745 eck$LassoCheckResult]: Stem: 1492#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1494#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 1517#L15-2 assume !!(main_~c~0#1 > 0); 1508#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 1509#L15-2 assume !!(main_~c~0#1 > 0); 1507#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 1506#L15-2 assume !!(main_~c~0#1 > 0); 1504#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 1505#L15-2 assume !!(main_~c~0#1 > 0); 1495#L15 [2024-11-13 15:11:28,351 INFO L747 eck$LassoCheckResult]: Loop: 1495#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 1496#L15-2 assume !!(main_~c~0#1 > 0); 1538#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 1537#L15-2 assume !!(main_~c~0#1 > 0); 1534#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 1533#L15-2 assume !!(main_~c~0#1 > 0); 1528#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 1532#L15-2 assume !!(main_~c~0#1 > 0); 1527#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 1522#L15-2 assume !!(main_~c~0#1 > 0); 1514#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 1513#L15-2 assume !!(main_~c~0#1 > 0); 1512#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 1510#L15-2 assume !!(main_~c~0#1 > 0); 1495#L15 [2024-11-13 15:11:28,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:28,352 INFO L85 PathProgramCache]: Analyzing trace with hash -281628550, now seen corresponding path program 7 times [2024-11-13 15:11:28,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:11:28,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653684794] [2024-11-13 15:11:28,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:11:28,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:11:28,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:28,358 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:11:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:28,362 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:11:28,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:28,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1884319866, now seen corresponding path program 3 times [2024-11-13 15:11:28,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:11:28,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440828507] [2024-11-13 15:11:28,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:11:28,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:11:28,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:28,418 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 15:11:28,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:11:28,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440828507] [2024-11-13 15:11:28,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440828507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:11:28,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:11:28,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:11:28,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15251967] [2024-11-13 15:11:28,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:11:28,419 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-13 15:11:28,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:11:28,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:11:28,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:11:28,420 INFO L87 Difference]: Start difference. First operand 52 states and 75 transitions. cyclomatic complexity: 28 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:28,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:11:28,431 INFO L93 Difference]: Finished difference Result 70 states and 95 transitions. [2024-11-13 15:11:28,431 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 70 states and 95 transitions. [2024-11-13 15:11:28,432 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 18 [2024-11-13 15:11:28,433 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 70 states to 55 states and 75 transitions. [2024-11-13 15:11:28,433 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-11-13 15:11:28,433 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2024-11-13 15:11:28,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 75 transitions. [2024-11-13 15:11:28,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 15:11:28,433 INFO L218 hiAutomatonCegarLoop]: Abstraction has 55 states and 75 transitions. [2024-11-13 15:11:28,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 75 transitions. [2024-11-13 15:11:28,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 49. [2024-11-13 15:11:28,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 49 states have (on average 1.4081632653061225) internal successors, (69), 48 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:28,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 69 transitions. [2024-11-13 15:11:28,437 INFO L240 hiAutomatonCegarLoop]: Abstraction has 49 states and 69 transitions. [2024-11-13 15:11:28,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:11:28,439 INFO L424 stractBuchiCegarLoop]: Abstraction has 49 states and 69 transitions. [2024-11-13 15:11:28,439 INFO L331 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-11-13 15:11:28,439 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 69 transitions. [2024-11-13 15:11:28,440 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 18 [2024-11-13 15:11:28,440 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:11:28,441 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:11:28,441 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 2, 1, 1, 1] [2024-11-13 15:11:28,441 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [8, 5, 3] [2024-11-13 15:11:28,442 INFO L745 eck$LassoCheckResult]: Stem: 1621#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1623#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 1640#L15-2 assume !!(main_~c~0#1 > 0); 1639#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 1638#L15-2 assume !!(main_~c~0#1 > 0); 1636#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 1635#L15-2 assume !!(main_~c~0#1 > 0); 1634#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 1630#L15-2 assume !!(main_~c~0#1 > 0); 1624#L15 [2024-11-13 15:11:28,442 INFO L747 eck$LassoCheckResult]: Loop: 1624#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 1625#L15-2 assume !!(main_~c~0#1 > 0); 1667#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 1666#L15-2 assume !!(main_~c~0#1 > 0); 1664#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 1663#L15-2 assume !!(main_~c~0#1 > 0); 1656#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 1662#L15-2 assume !!(main_~c~0#1 > 0); 1657#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 1655#L15-2 assume !!(main_~c~0#1 > 0); 1650#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 1637#L15-2 assume !!(main_~c~0#1 > 0); 1644#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 1643#L15-2 assume !!(main_~c~0#1 > 0); 1642#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 1641#L15-2 assume !!(main_~c~0#1 > 0); 1624#L15 [2024-11-13 15:11:28,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:28,442 INFO L85 PathProgramCache]: Analyzing trace with hash -281628550, now seen corresponding path program 8 times [2024-11-13 15:11:28,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:11:28,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032166228] [2024-11-13 15:11:28,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:11:28,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:11:28,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:28,447 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:11:28,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:28,451 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:11:28,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:28,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1783554269, now seen corresponding path program 4 times [2024-11-13 15:11:28,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:11:28,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808554468] [2024-11-13 15:11:28,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:11:28,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:11:28,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:28,574 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 38 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:11:28,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:11:28,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808554468] [2024-11-13 15:11:28,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808554468] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:11:28,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850465495] [2024-11-13 15:11:28,575 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-13 15:11:28,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:11:28,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:28,577 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:11:28,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2024-11-13 15:11:28,610 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-13 15:11:28,610 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:11:28,610 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 15:11:28,611 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:28,651 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 38 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:11:28,651 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:11:28,750 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 38 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:11:28,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850465495] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:11:28,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:11:28,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2024-11-13 15:11:28,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091586666] [2024-11-13 15:11:28,751 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:11:28,751 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-13 15:11:28,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:11:28,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-13 15:11:28,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2024-11-13 15:11:28,752 INFO L87 Difference]: Start difference. First operand 49 states and 69 transitions. cyclomatic complexity: 25 Second operand has 16 states, 16 states have (on average 1.9375) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:28,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2024-11-13 15:11:28,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:11:28,844 INFO L93 Difference]: Finished difference Result 152 states and 168 transitions. [2024-11-13 15:11:28,844 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 152 states and 168 transitions. [2024-11-13 15:11:28,846 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 32 [2024-11-13 15:11:28,847 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 152 states to 93 states and 107 transitions. [2024-11-13 15:11:28,850 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-11-13 15:11:28,850 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-11-13 15:11:28,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93 states and 107 transitions. [2024-11-13 15:11:28,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 15:11:28,851 INFO L218 hiAutomatonCegarLoop]: Abstraction has 93 states and 107 transitions. [2024-11-13 15:11:28,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states and 107 transitions. [2024-11-13 15:11:28,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 80. [2024-11-13 15:11:28,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 80 states have (on average 1.15) internal successors, (92), 79 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:28,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 92 transitions. [2024-11-13 15:11:28,856 INFO L240 hiAutomatonCegarLoop]: Abstraction has 80 states and 92 transitions. [2024-11-13 15:11:28,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 15:11:28,857 INFO L424 stractBuchiCegarLoop]: Abstraction has 80 states and 92 transitions. [2024-11-13 15:11:28,857 INFO L331 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2024-11-13 15:11:28,858 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states and 92 transitions. [2024-11-13 15:11:28,858 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 26 [2024-11-13 15:11:28,859 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:11:28,859 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:11:28,859 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1] [2024-11-13 15:11:28,859 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [13, 7, 6] [2024-11-13 15:11:28,859 INFO L745 eck$LassoCheckResult]: Stem: 1935#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1936#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 1956#L15-2 assume !!(main_~c~0#1 > 0); 1955#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 1947#L15-2 assume !!(main_~c~0#1 > 0); 1948#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 1945#L15-2 [2024-11-13 15:11:28,860 INFO L747 eck$LassoCheckResult]: Loop: 1945#L15-2 assume !!(main_~c~0#1 > 0); 1942#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 1939#L15-2 assume !!(main_~c~0#1 > 0); 1940#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 1962#L15-2 assume !!(main_~c~0#1 > 0); 1963#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 1978#L15-2 assume !!(main_~c~0#1 > 0); 1977#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 1976#L15-2 assume !!(main_~c~0#1 > 0); 1975#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 1974#L15-2 assume !!(main_~c~0#1 > 0); 1973#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 1972#L15-2 assume !!(main_~c~0#1 > 0); 1971#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 1970#L15-2 assume !!(main_~c~0#1 > 0); 1969#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 1968#L15-2 assume !!(main_~c~0#1 > 0); 1967#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 1966#L15-2 assume !!(main_~c~0#1 > 0); 1965#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 1964#L15-2 assume !!(main_~c~0#1 > 0); 1950#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 1953#L15-2 assume !!(main_~c~0#1 > 0); 1951#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 1949#L15-2 assume !!(main_~c~0#1 > 0); 1946#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 1945#L15-2 [2024-11-13 15:11:28,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:28,860 INFO L85 PathProgramCache]: Analyzing trace with hash 889663373, now seen corresponding path program 4 times [2024-11-13 15:11:28,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:11:28,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607452752] [2024-11-13 15:11:28,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:11:28,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:11:28,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:28,865 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:11:28,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:28,868 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:11:28,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:28,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1767338060, now seen corresponding path program 5 times [2024-11-13 15:11:28,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:11:28,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133893129] [2024-11-13 15:11:28,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:11:28,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:11:28,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:28,879 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:11:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:28,889 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:11:28,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:28,890 INFO L85 PathProgramCache]: Analyzing trace with hash 995633216, now seen corresponding path program 9 times [2024-11-13 15:11:28,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:11:28,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41652650] [2024-11-13 15:11:28,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:11:28,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:11:28,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:28,910 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:11:28,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:28,934 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:11:29,261 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:11:29,261 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:11:29,261 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:11:29,261 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:11:29,262 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 15:11:29,262 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:29,262 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:11:29,262 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:11:29,262 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration10_Loop [2024-11-13 15:11:29,262 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:11:29,262 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:11:29,263 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:29,266 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:29,275 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:29,278 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:29,332 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:11:29,332 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 15:11:29,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:29,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:29,335 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:29,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2024-11-13 15:11:29,337 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:11:29,337 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:11:29,357 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:11:29,357 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_15=1} Honda state: {v_rep~unnamed0~0~true_15=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:11:29,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2024-11-13 15:11:29,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:29,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:29,371 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:29,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2024-11-13 15:11:29,374 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:11:29,375 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:11:29,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2024-11-13 15:11:29,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:29,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:29,413 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:29,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2024-11-13 15:11:29,416 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 15:11:29,416 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:11:29,447 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 15:11:29,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2024-11-13 15:11:29,451 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:11:29,451 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:11:29,451 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:11:29,451 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:11:29,451 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 15:11:29,451 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:29,451 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:11:29,451 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:11:29,451 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration10_Loop [2024-11-13 15:11:29,451 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:11:29,451 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:11:29,452 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:29,455 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:29,461 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:29,470 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:29,516 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:11:29,516 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 15:11:29,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:29,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:29,518 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:29,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2024-11-13 15:11:29,523 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:11:29,534 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:11:29,534 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:11:29,534 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:11:29,534 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:11:29,536 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:11:29,536 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:11:29,540 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:11:29,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2024-11-13 15:11:29,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:29,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:29,554 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:29,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2024-11-13 15:11:29,556 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:11:29,568 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:11:29,568 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:11:29,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:11:29,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:11:29,568 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:11:29,569 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:11:29,569 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:11:29,571 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 15:11:29,574 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 15:11:29,574 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-13 15:11:29,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:29,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:29,576 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:29,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2024-11-13 15:11:29,577 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 15:11:29,577 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 15:11:29,577 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 15:11:29,577 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1) = 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2024-11-13 15:11:29,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2024-11-13 15:11:29,591 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 15:11:29,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:29,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:29,607 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:11:29,607 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:29,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:29,636 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 15:11:29,638 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:29,960 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 66 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:11:29,960 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 13 loop predicates [2024-11-13 15:11:29,961 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 80 states and 92 transitions. cyclomatic complexity: 17 Second operand has 15 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:29,967 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 80 states and 92 transitions. cyclomatic complexity: 17. Second operand has 15 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 86 states and 101 transitions. Complement of second has 5 states. [2024-11-13 15:11:29,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-13 15:11:29,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:29,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2024-11-13 15:11:29,969 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 26 letters. [2024-11-13 15:11:29,969 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:29,969 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 15:11:29,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:29,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:29,993 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:11:29,993 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:30,006 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2024-11-13 15:11:30,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:30,022 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 15:11:30,023 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:30,325 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 66 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:11:30,325 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 13 loop predicates [2024-11-13 15:11:30,325 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 80 states and 92 transitions. cyclomatic complexity: 17 Second operand has 15 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:30,330 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 80 states and 92 transitions. cyclomatic complexity: 17. Second operand has 15 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 86 states and 101 transitions. Complement of second has 5 states. [2024-11-13 15:11:30,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-13 15:11:30,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:30,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2024-11-13 15:11:30,334 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 26 letters. [2024-11-13 15:11:30,334 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:30,334 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 15:11:30,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:30,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:30,355 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:11:30,356 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:30,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:30,381 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 15:11:30,382 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:30,682 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 66 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:11:30,682 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 13 loop predicates [2024-11-13 15:11:30,683 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 80 states and 92 transitions. cyclomatic complexity: 17 Second operand has 15 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:30,692 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 80 states and 92 transitions. cyclomatic complexity: 17. Second operand has 15 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 115 states and 134 transitions. Complement of second has 4 states. [2024-11-13 15:11:30,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-13 15:11:30,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:30,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2024-11-13 15:11:30,693 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 26 letters. [2024-11-13 15:11:30,694 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:30,694 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 15:11:30,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:30,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:30,717 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:11:30,718 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:30,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:30,746 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 15:11:30,747 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:31,046 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 66 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:11:31,046 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 13 loop predicates [2024-11-13 15:11:31,047 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 80 states and 92 transitions. cyclomatic complexity: 17 Second operand has 15 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:31,096 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 80 states and 92 transitions. cyclomatic complexity: 17. Second operand has 15 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 137 states and 157 transitions. Complement of second has 8 states. [2024-11-13 15:11:31,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-13 15:11:31,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:31,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2024-11-13 15:11:31,098 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 6 letters. Loop has 26 letters. [2024-11-13 15:11:31,098 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:31,098 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 15:11:31,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:31,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:31,128 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:11:31,129 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:31,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:31,152 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 15:11:31,153 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:31,422 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 66 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:11:31,422 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 13 loop predicates [2024-11-13 15:11:31,423 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 80 states and 92 transitions. cyclomatic complexity: 17 Second operand has 15 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:31,489 WARN L278 uchiComplementFKVNwa]: big8 [2024-11-13 15:11:31,491 WARN L278 uchiComplementFKVNwa]: big8 [2024-11-13 15:11:31,491 WARN L278 uchiComplementFKVNwa]: big8 [2024-11-13 15:11:31,492 WARN L278 uchiComplementFKVNwa]: big8 [2024-11-13 15:11:31,492 WARN L278 uchiComplementFKVNwa]: big8 [2024-11-13 15:11:31,547 WARN L278 uchiComplementFKVNwa]: big8 [2024-11-13 15:11:31,548 WARN L278 uchiComplementFKVNwa]: big8 [2024-11-13 15:11:31,549 WARN L278 uchiComplementFKVNwa]: big8 [2024-11-13 15:11:31,549 WARN L278 uchiComplementFKVNwa]: big8 [2024-11-13 15:11:31,589 WARN L278 uchiComplementFKVNwa]: big8 [2024-11-13 15:11:31,590 WARN L278 uchiComplementFKVNwa]: big8 [2024-11-13 15:11:31,590 WARN L278 uchiComplementFKVNwa]: big8 [2024-11-13 15:11:31,590 WARN L278 uchiComplementFKVNwa]: big8 [2024-11-13 15:11:31,632 WARN L278 uchiComplementFKVNwa]: big8 [2024-11-13 15:11:31,633 WARN L278 uchiComplementFKVNwa]: big8 [2024-11-13 15:11:31,633 WARN L278 uchiComplementFKVNwa]: big8 [2024-11-13 15:11:31,633 WARN L278 uchiComplementFKVNwa]: big8 [2024-11-13 15:11:31,679 WARN L278 uchiComplementFKVNwa]: big8 [2024-11-13 15:11:31,680 WARN L278 uchiComplementFKVNwa]: big8 [2024-11-13 15:11:31,680 WARN L278 uchiComplementFKVNwa]: big8 [2024-11-13 15:11:31,681 WARN L278 uchiComplementFKVNwa]: big8 [2024-11-13 15:11:31,732 WARN L278 uchiComplementFKVNwa]: big8 [2024-11-13 15:11:31,732 WARN L278 uchiComplementFKVNwa]: big8 [2024-11-13 15:11:31,734 WARN L278 uchiComplementFKVNwa]: big8 [2024-11-13 15:11:31,734 WARN L278 uchiComplementFKVNwa]: big8 [2024-11-13 15:11:31,734 WARN L278 uchiComplementFKVNwa]: big8 [2024-11-13 15:11:31,734 WARN L278 uchiComplementFKVNwa]: big8 [2024-11-13 15:11:31,734 WARN L278 uchiComplementFKVNwa]: big8 [2024-11-13 15:11:31,735 WARN L278 uchiComplementFKVNwa]: big8 [2024-11-13 15:11:31,742 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 80 states and 92 transitions. cyclomatic complexity: 17 Second operand has 15 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 859 states and 1158 transitions. Complement of second has 221 states 28 powerset states193 rank states. The highest rank that occured is 7 [2024-11-13 15:11:31,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 15 states 1 stem states 13 non-accepting loop states 1 accepting loop states [2024-11-13 15:11:31,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:31,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 63 transitions. [2024-11-13 15:11:31,744 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 63 transitions. Stem has 6 letters. Loop has 26 letters. [2024-11-13 15:11:31,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:31,745 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 63 transitions. Stem has 32 letters. Loop has 26 letters. [2024-11-13 15:11:31,746 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:31,746 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 63 transitions. Stem has 6 letters. Loop has 52 letters. [2024-11-13 15:11:31,749 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:31,749 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 859 states and 1158 transitions. [2024-11-13 15:11:31,765 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 40 [2024-11-13 15:11:31,772 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 859 states to 289 states and 350 transitions. [2024-11-13 15:11:31,772 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-11-13 15:11:31,772 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-11-13 15:11:31,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 289 states and 350 transitions. [2024-11-13 15:11:31,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 15:11:31,772 INFO L218 hiAutomatonCegarLoop]: Abstraction has 289 states and 350 transitions. [2024-11-13 15:11:31,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states and 350 transitions. [2024-11-13 15:11:31,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 215. [2024-11-13 15:11:31,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 215 states have (on average 1.2186046511627906) internal successors, (262), 214 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:31,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 262 transitions. [2024-11-13 15:11:31,794 INFO L240 hiAutomatonCegarLoop]: Abstraction has 215 states and 262 transitions. [2024-11-13 15:11:31,794 INFO L424 stractBuchiCegarLoop]: Abstraction has 215 states and 262 transitions. [2024-11-13 15:11:31,794 INFO L331 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2024-11-13 15:11:31,794 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 215 states and 262 transitions. [2024-11-13 15:11:31,796 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 33 [2024-11-13 15:11:31,796 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:11:31,796 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:11:31,796 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1] [2024-11-13 15:11:31,796 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [15, 8, 7] [2024-11-13 15:11:31,797 INFO L745 eck$LassoCheckResult]: Stem: 4105#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 4106#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 4153#L15-2 assume !!(main_~c~0#1 > 0); 4150#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 4145#L15-2 assume !!(main_~c~0#1 > 0); 4114#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 4111#L15-2 [2024-11-13 15:11:31,797 INFO L747 eck$LassoCheckResult]: Loop: 4111#L15-2 assume !!(main_~c~0#1 > 0); 4112#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 4227#L15-2 assume !!(main_~c~0#1 > 0); 4226#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 4224#L15-2 assume !!(main_~c~0#1 > 0); 4217#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 4215#L15-2 assume !!(main_~c~0#1 > 0); 4213#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 4211#L15-2 assume !!(main_~c~0#1 > 0); 4209#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 4207#L15-2 assume !!(main_~c~0#1 > 0); 4205#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 4203#L15-2 assume !!(main_~c~0#1 > 0); 4201#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 4199#L15-2 assume !!(main_~c~0#1 > 0); 4197#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 4195#L15-2 assume !!(main_~c~0#1 > 0); 4193#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 4191#L15-2 assume !!(main_~c~0#1 > 0); 4189#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 4186#L15-2 assume !!(main_~c~0#1 > 0); 4185#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 4184#L15-2 assume !!(main_~c~0#1 > 0); 4183#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 4170#L15-2 assume !!(main_~c~0#1 > 0); 4118#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 4121#L15-2 assume !!(main_~c~0#1 > 0); 4119#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 4117#L15-2 assume !!(main_~c~0#1 > 0); 4116#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 4111#L15-2 [2024-11-13 15:11:31,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:31,797 INFO L85 PathProgramCache]: Analyzing trace with hash 889663373, now seen corresponding path program 5 times [2024-11-13 15:11:31,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:11:31,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913307471] [2024-11-13 15:11:31,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:11:31,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:11:31,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:31,804 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:11:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:31,809 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:11:31,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:31,812 INFO L85 PathProgramCache]: Analyzing trace with hash -340372612, now seen corresponding path program 6 times [2024-11-13 15:11:31,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:11:31,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733921477] [2024-11-13 15:11:31,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:11:31,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:11:31,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:31,827 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:11:31,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:31,842 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:11:31,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:31,845 INFO L85 PathProgramCache]: Analyzing trace with hash 110020104, now seen corresponding path program 10 times [2024-11-13 15:11:31,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:11:31,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167516537] [2024-11-13 15:11:31,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:11:31,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:11:31,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:31,855 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:11:31,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:11:31,871 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:11:32,240 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:11:32,241 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:11:32,241 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:11:32,241 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:11:32,241 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 15:11:32,241 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:32,241 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:11:32,241 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:11:32,241 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration11_Loop [2024-11-13 15:11:32,241 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:11:32,241 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:11:32,242 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:32,245 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:32,251 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:32,254 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:32,299 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:11:32,299 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 15:11:32,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:32,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:32,301 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:32,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2024-11-13 15:11:32,302 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:11:32,302 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:11:32,321 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:11:32,321 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_17=1} Honda state: {v_rep~unnamed0~0~true_17=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:11:32,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2024-11-13 15:11:32,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:32,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:32,337 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:32,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2024-11-13 15:11:32,338 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:11:32,338 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:11:32,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2024-11-13 15:11:32,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:32,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:32,364 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:32,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2024-11-13 15:11:32,366 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 15:11:32,366 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:11:32,438 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 15:11:32,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2024-11-13 15:11:32,442 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:11:32,442 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:11:32,442 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:11:32,442 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:11:32,442 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 15:11:32,442 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:32,442 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:11:32,442 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:11:32,442 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration11_Loop [2024-11-13 15:11:32,442 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:11:32,442 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:11:32,443 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:32,445 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:32,450 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:32,452 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:11:32,501 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:11:32,501 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 15:11:32,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:32,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:32,503 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:32,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2024-11-13 15:11:32,505 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:11:32,519 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:11:32,519 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:11:32,519 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:11:32,519 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:11:32,525 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:11:32,525 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:11:32,529 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:11:32,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2024-11-13 15:11:32,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:32,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:32,545 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:32,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2024-11-13 15:11:32,546 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:11:32,557 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:11:32,557 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:11:32,557 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:11:32,557 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:11:32,557 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:11:32,558 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:11:32,558 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:11:32,560 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 15:11:32,562 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 15:11:32,563 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-13 15:11:32,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:11:32,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:11:32,564 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:11:32,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2024-11-13 15:11:32,566 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 15:11:32,567 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 15:11:32,567 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 15:11:32,567 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~c~0#1) = 1*ULTIMATE.start_main_~c~0#1 Supporting invariants [] [2024-11-13 15:11:32,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2024-11-13 15:11:32,579 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 15:11:32,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:32,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:32,595 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:11:32,595 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:32,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:32,620 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-13 15:11:32,621 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:32,791 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 102 proven. 48 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-13 15:11:32,791 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2024-11-13 15:11:32,792 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 215 states and 262 transitions. cyclomatic complexity: 58 Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:32,802 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 215 states and 262 transitions. cyclomatic complexity: 58. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 227 states and 286 transitions. Complement of second has 5 states. [2024-11-13 15:11:32,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-13 15:11:32,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:32,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2024-11-13 15:11:32,804 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 30 letters. [2024-11-13 15:11:32,804 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:32,804 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 15:11:32,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:32,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:32,823 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:11:32,823 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:32,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:32,850 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-13 15:11:32,851 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:33,064 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 102 proven. 48 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-13 15:11:33,064 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 6 loop predicates [2024-11-13 15:11:33,064 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 215 states and 262 transitions. cyclomatic complexity: 58 Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:33,071 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2024-11-13 15:11:33,076 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 215 states and 262 transitions. cyclomatic complexity: 58. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 227 states and 286 transitions. Complement of second has 5 states. [2024-11-13 15:11:33,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-13 15:11:33,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:33,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2024-11-13 15:11:33,079 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 30 letters. [2024-11-13 15:11:33,079 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:33,079 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 15:11:33,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:33,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:33,107 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:11:33,108 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:33,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:33,134 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-13 15:11:33,135 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:33,308 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 102 proven. 48 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-13 15:11:33,309 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2024-11-13 15:11:33,309 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 215 states and 262 transitions. cyclomatic complexity: 58 Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:33,336 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 215 states and 262 transitions. cyclomatic complexity: 58. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 329 states and 404 transitions. Complement of second has 7 states. [2024-11-13 15:11:33,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-13 15:11:33,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:33,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2024-11-13 15:11:33,337 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 6 letters. Loop has 30 letters. [2024-11-13 15:11:33,338 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:33,338 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 15:11:33,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:11:33,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:33,359 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:11:33,359 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:33,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:11:33,385 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-13 15:11:33,386 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:11:33,567 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 102 proven. 48 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-13 15:11:33,567 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 6 loop predicates [2024-11-13 15:11:33,567 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 215 states and 262 transitions. cyclomatic complexity: 58 Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:33,623 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 215 states and 262 transitions. cyclomatic complexity: 58. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 461 states and 551 transitions. Complement of second has 12 states. [2024-11-13 15:11:33,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2024-11-13 15:11:33,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:11:33,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 14 transitions. [2024-11-13 15:11:33,624 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 14 transitions. Stem has 6 letters. Loop has 30 letters. [2024-11-13 15:11:33,625 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:33,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 14 transitions. Stem has 36 letters. Loop has 30 letters. [2024-11-13 15:11:33,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:33,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 14 transitions. Stem has 6 letters. Loop has 60 letters. [2024-11-13 15:11:33,627 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:11:33,628 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 461 states and 551 transitions. [2024-11-13 15:11:33,633 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-13 15:11:33,635 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 461 states to 0 states and 0 transitions. [2024-11-13 15:11:33,635 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-13 15:11:33,635 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-13 15:11:33,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-13 15:11:33,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 15:11:33,636 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 15:11:33,636 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 15:11:33,636 INFO L424 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 15:11:33,636 INFO L331 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2024-11-13 15:11:33,636 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-13 15:11:33,636 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-13 15:11:33,636 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-13 15:11:33,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 03:11:33 BoogieIcfgContainer [2024-11-13 15:11:33,650 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-13 15:11:33,651 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 15:11:33,651 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 15:11:33,651 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 15:11:33,652 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:11:21" (3/4) ... [2024-11-13 15:11:33,655 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 15:11:33,656 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 15:11:33,657 INFO L158 Benchmark]: Toolchain (without parser) took 12771.78ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 118.1MB in the beginning and 96.6MB in the end (delta: 21.5MB). Peak memory consumption was 50.8MB. Max. memory is 16.1GB. [2024-11-13 15:11:33,657 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 117.4MB. Free memory was 74.5MB in the beginning and 74.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:11:33,657 INFO L158 Benchmark]: CACSL2BoogieTranslator took 224.77ms. Allocated memory is still 142.6MB. Free memory was 117.9MB in the beginning and 108.0MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:11:33,658 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.22ms. Allocated memory is still 142.6MB. Free memory was 108.0MB in the beginning and 107.0MB in the end (delta: 970.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:11:33,659 INFO L158 Benchmark]: Boogie Preprocessor took 25.76ms. Allocated memory is still 142.6MB. Free memory was 107.0MB in the beginning and 106.1MB in the end (delta: 922.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:11:33,659 INFO L158 Benchmark]: RCFGBuilder took 246.98ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 97.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:11:33,660 INFO L158 Benchmark]: BuchiAutomizer took 12238.03ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 97.5MB in the beginning and 96.6MB in the end (delta: 891.7kB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. [2024-11-13 15:11:33,660 INFO L158 Benchmark]: Witness Printer took 4.87ms. Allocated memory is still 176.2MB. Free memory was 96.6MB in the beginning and 96.6MB in the end (delta: 24.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:11:33,663 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 117.4MB. Free memory was 74.5MB in the beginning and 74.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 224.77ms. Allocated memory is still 142.6MB. Free memory was 117.9MB in the beginning and 108.0MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.22ms. Allocated memory is still 142.6MB. Free memory was 108.0MB in the beginning and 107.0MB in the end (delta: 970.9kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.76ms. Allocated memory is still 142.6MB. Free memory was 107.0MB in the beginning and 106.1MB in the end (delta: 922.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 246.98ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 97.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 12238.03ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 97.5MB in the beginning and 96.6MB in the end (delta: 891.7kB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. * Witness Printer took 4.87ms. Allocated memory is still 176.2MB. Free memory was 96.6MB in the beginning and 96.6MB in the end (delta: 24.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 13 terminating modules (4 trivial, 3 deterministic, 6 nondeterministic). One deterministic module has affine ranking function c and consists of 4 locations. One deterministic module has affine ranking function c and consists of 3 locations. One deterministic module has affine ranking function (211 + ((long) -2 * n)) and consists of 3 locations. One nondeterministic module has affine ranking function n and consists of 3 locations. One nondeterministic module has affine ranking function (211 + ((long) -2 * n)) and consists of 3 locations. One nondeterministic module has affine ranking function (((long) -2 * n) + 201) and consists of 5 locations. One nondeterministic module has affine ranking function n and consists of 5 locations. One nondeterministic module has affine ranking function n and consists of 15 locations. One nondeterministic module has affine ranking function c and consists of 6 locations. 4 modules have a trivial ranking function, the largest among these consists of 16 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 12.1s and 12 iterations. TraceHistogramMax:15. Analysis of lassos took 6.7s. Construction of modules took 0.3s. Büchi inclusion checks took 4.8s. Highest rank in rank-based complementation 7. Minimization of det autom 1. Minimization of nondet autom 12. Automata minimization 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 148 StatesRemovedByMinimization, 10 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 3, 1, 2]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 233/374 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 191 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 157 mSDsluCounter, 246 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 87 mSDsCounter, 90 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 273 IncrementalHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 90 mSolverCounterUnsat, 159 mSDtfsCounter, 273 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT7 conc0 concLT1 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax163 hnf100 lsp36 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf94 smp98 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 39ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 12 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 9 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-13 15:11:33,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2024-11-13 15:11:33,888 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2024-11-13 15:11:34,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326c48cd-b6b3-47ce-9c54-e799d443802a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE